/**
* Sends a rendered html page
*
* @param $template
* @param array|null $data
* @param array|null $headers
* @param int $responseCode
*
* @return mixed
*/
public function send($template, array $data = [], array $headers = [], $responseCode = self::OK)
{
$this->addHeader('Content-Type', 'text/html;charset=UTF-8');
$this->addHeaders($headers);
$this->raw($this->templateClient->render($template, $data), $responseCode);
}